Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header
morrowc.lists at gmail.com
Fri Sep 30 11:30:16 CDT 2011
On Fri, Sep 30, 2011 at 11:24 AM, Nick Hilliard <nick at foobar.org> wrote:
> On 30/09/2011 15:45, Christopher Morrow wrote:
>> traceroute could certainly be handled in the fastpath.
> which traceroute? icmp? udp? tcp? Traceroute is not a single protocol.
traceroute is really an example of 'packet expired, send
unreachable'... that, today is basically:
o grab 64bytes of header (or something similar)
o shove that in a payload
o use the src as the dst
o stick my src on
o set icmp
o crc and fire
there's not really any need to do this in the slow path, is there?
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